"He's scored a few goals but that's because he started out as a left midfielder. He only became a left-back in the last couple of years, but he made such big progress that it became his position.

"He still likes to go forward and try to score. He has a powerful kick, a very good left foot and he puts in some good crosses, too. He has a lot of energy and he's good for team spirit.

"He's so excited about joining United," the ex-pro continued.

"Having got the chance, he really wants to go for it. He was very impressed with what he saw of Old Trafford when he went to sign, even though it was empty. I know the feeling.

"I told him he was very lucky to be arriving at a club like United, because it's a totally different world to any other club, and I told him to take the chance with both hands. I really hope he does."

The 23 year old was left out of the squad that faced Fulham at the weekend, and his full debut for the club could have to the wait until the start of the Champions League and the League Cup next month.

Buttner isn't the only new Dutch recruit at United this summer, with Robin van Persie having joined from Arsenal, a move he crowned in the grand manner with a debut goal coming against Fulham in his first start.